Riveting-machine.



H. P, TOWNSEND.

RIVETING MACHINE.

APPLICATION FILED AUG. 21, 1909.

Patented. June 10, 1913 3 SHEETS-SHEET l.

[N VEN TOR.

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WITNESSES: g Y

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H. P. TOWNSEND.

RIVETING MACHINE.

APPLICATION FILED AUG. 21, 1909.

Patented June 10, 1913.

' s SHEETS-SHEET 2.

WITNES SE TORNEY.

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H. Pa TUWNSEND. RIVETIHG MACHINE. APPLIOATIOII FILED AUG. 21, 1909.

' Patented Juna 10, 1913.

3 SEEETB-SHEET 3.

@ WITNESSES: 32%

INVENTOR'.

rn tu t i nfi td ilf ilil ,'liilny Oil i i-eh W.

r l il i t hirer-tr ion I: TOWNSEND, F WATER-BURY, CONNECTICUT.

EIVETING-ll/IACHINE.

Application filed August 21, 1909.

" HARRY P. TOWNSEND,

- ed States, and a resi- M in the county of New e 81 Connecticut, have in Eiiiproved Riveting-l /lathe following is a specimetal and an among others, is class in which .is laced; and s cntion to prot while ere ing the form off rt such force as .stort n a further object Li i vide a machine {illlvilllj vibration shall be m a. do. still further non is to provide a device o specified, simple and. durable 311 and operation and rew' as chine in the construction the objects hereinabove others may be attained. the accompanying drewfront elevation of e and in vertical upper part on plane passing the axis of the driving shaft. view looking the side of the with the side plate removed and in vertical section through the Y hammer; one of the striker X s also removed. i i 3 is a View elevation of the lower part of the .l is detail view on enlarged operating lever. Figs. 5 Ens showing the torinaail vii nds oi he hammer in one form Fi T and S are detail i wt ..3i'i(:i i on. machine dist'losed l (Ullfztll'llfli ion and i rcnicly ellective metal, yet at the t. only the metal is displaced, thus j'llin or distortion of the Specification of Letters atenc.

herein boivn and embodying these features ml 6 denotes a base that may have ole means of support, as legs or A frame 7 rises from the base iatcs at its upper end in a casing an extension 9 at one side. This a chamber 10 closed at the side the extension 5) by a cap 11. A shaft- 12 extends thro'i gh the cnain this shaft being mounted in the sion 0 and in the cap 11, in the form or" construction herein shown a hub 13 being formed on the cap to receive the bearing, i iny suitable form of bearing may be provided for this shaft, and it Will be lubricated in any desired manner, as herein shown oil cups 14 being employed for the purpose.

The shaft 12 may be driven from suitable source of power, a driving pulley secured to the shaft being shown herein for this purpose. A striker-head 16 is located within the chamber 10 and is secured to the driving shaft to rotate therewith. a w s strikers i! are mounted in this head 1n a inanner to. have a slight radial movement. In the preferred form of construction and as shown herein the head is composed of a plate 18' mounted upon the shaft and a plate 19 secured to the shaft by interineshing "crew threads, spacer 520 being located bet see the parts this spacer be ing of less diameter than the plates, thus .fonning; a peripheral groove Within which the strikers 17 are located.

The plates 18 and 19 have openings :21 formed preferably at regular intervals on a circle. extending around the plates near the edge. The strikers 17 have hubs 22 luouted in said openings, these hubs being of a size less than that oftho openings, so that the strikers may he -'e a radial movement with respect to the striker head. 16.

A neck 23 projects downward from the casing 8, this neck being tubular, and with in which a hammer 24; is located to have both a longitudinal reciprocating movement and a rotar movement. I m-range this hannncr so that a inininunn ell'ect of the blow olf each striker will be produced, each so rate blow having but slight e ct upon the work and therefore enabling very small parts to be operated upon without injury hereto The light blows are however de- I livered in sueh' rapid succession that the contact with i the strikers being-limited effect of the loose faces of various kinds,

upon the work.

roduces a device which is head and strikers es e'ciall a lica le {oi-various ur oses,

. P 3' PP, P P

as for sw'agmg operations, reducing surand for vibrating purposes and the like. In the form of con struction herein shown a bushing is. locatedin the'neck. near its upper end and a tip 2t} is'secured to the lower end of the neck by any suitable means, as by interengaging I, screw-threads, the tip projecting beyond the base 6 containing end of the neck. A sleeve 28 is located within the bushin 25 for rotary movement, the lower end'of t is sleeve being enlarged as at 29 forming a shoulder against which the bushing 25 rests. The end of this sleeve is also provided with slots 30 within which a pin or pins 31 projecting from the hammer are located.

A shoulder is formed on the hammer, which shoulder is located within the sleeve 28 and the latter is also chambered to receive a spring 61' which forces the hammer downward into contact with the work. This spring prevents the hammer from dancing under the rapidly delivered blows.

The sleeve 28 may be rotated in any suitable manner, in the form of construction herein shown a pinion 32 being secured to the upper end of the sleeve and resting against the bushing 25. A pinion 33 meshes with the pinion 32 andis secured to a shaft 34 mounted in the projection 9 from the casing. A bevel pinion 35 is.secured to the upper end-of the shaft 34', which pinion 35 meshes with a bevel gear 36 secured to the driving shaft 12. Thelower end of the neck 23 is split on one side as at 37 and openings 38 are formed. through the neck on opposite sides extending across the split portion connection with the mechanism herein. set

rapid succession of blows of com for the reception of a clamp boltbymeans of which the tip26 may be clamp d in position.

A bracket 39 extends downward underneath'the base 6, this bracket having a lip forming a bearing 40 for a plunger 41 which extends through the lip 40 and through the at its upper end an anvil 42. A collar 43 is secured to the plunger 41 underneath thebase ('3, and this collar mav delivery of the blows that the movement of the form a surface more or loss be' fastened as by means ot a clanip bolt extending-through the opening 44 across a slot cut through the collar on one side. This collar forms a stop to limit the upward movement of the plunger and it also has a projection 45 located in a notch 46in the arm 47 of an operating lever 48. The engagement of the notch 46 with the lug 45 forms an eflicient means for also anchoring the collar 43 and the plunger 41 against rotation. This lever is preferably forked at its upper end, which fork receives the bracketl39 between the forks, and the arm 47 is of U-shape, the plunger 41 extending through this U-shaped part of the lever. The arm 47 contacts with the lip 40 to limit lever in one direction.

A stop 49 is located on the supporting column in position to be encountered by the lower end of the lever 48 at or about the time that the collar 43 encounters the under side of the table 6. The lower end of the lever encountering this stop prevents a.

springing. or jumping action of the lever,

which as shown, the operative.

The anvil 42 may be suitably formed to receive the work, which as shown herein consists of two pieces50 secured together by the rivet 51 which isbeing headed by the machine.

The end of the hammer 24 is so formed that its contact with the metal being displaced will be in a line or lines extending across the'metal. If the tool is formed to head a rivet it may be shaped as shown in Figs. 5 and 6, in which a groove 55 is formed in the end of the hammer, the bottom of the groove being curved in two directions transversely, each to the other, so that as the tool comes in contact with the head of the rivet it will impart a rounded form to the head. The end ofLthe rivet being flat at the commencement of the operation the line contactof the tool will only be at the edges of the groove, this line contact extending across the groove. As the rounded form'is gradually given to thehead this line contact increases. .If it is desired to displace the surface. to get a tool may be provided as shown in Fig. in which the tapered end 56 will contact in a line extending thereacross.

By the use of the tool above described in forth a pa'ratively light ,force is delivered upon the work and the formation of the tool is such that the work will be rapidly upset without distorting the metal except at the points intended.

I claim- I 1. In a hammering device, a rotary striker head, striker s loosely mounted in said head is operated by the foot of with the work ime of lever, and plunger extending to have a iimite \IHOiOSiLIUCiQfi move'menfi sic iiie time of delivery of e blew, means '3 e1 ipi1ez=ai ,gre-0ve Vanni spenwe 'saii gioeve, strikers having mes 511 ssiai openings end smaller in than the ups-[dings WhQlP/ey a 'ii'miied use? sir-need mevement 0f the strikers at the delivery of a, biow is permitted, and

means for rotating the striker heed.

is a hammering device, e rotary strike- .1. SellkQIS located in sew. groove and having ntegral hubs located in sa d openings and sin-a1 er in size than the epenings wii eey a limited unenstruet eei move'n'iezit oi the sirikers at the time 0% delivery 0i biew is permitted, and means fer some he striker head.

ii rotary striker heed, serike'rs ieeseiy mmmteci Saici heed so have s limited 1m obstructed action at the ili'llbi: eif deiivei'y {if e biew, hammer movebiy momi'teei to reeeive gieiicing' biows 072 the sieikers eeress its, end in a directioniatemiiy it: its direci ion 0i i'ng Use by said 6. In hammeringeieviee, a rotary striker heed having openings strikers having hubs located in said epenings and siiieiier 111 size than the openings, whereby- 5, 1imite& unob- SillllC'ilfid; movemei'it of thwstrikers at the time of cieiivery 0% a biOW is permitted, a hammer movebiy mounted to receive glancing biews of the strikers across its and in a directiezi laterally to its direction 01? movemeet and masses for rotating;- the striker hemi.

7. 121 e riveiieg machine,- woriesuppoming member cemprising s iever having an arm snbseentieiiy, horizontally arranged, said lever being pivetaiiy-supperied anti having a eqmpemtiveiy ieng epersting eirm,

plunger 1e1- conneciion between plunger end the hei'izenteiiy-arranged Mm t0 permit fleeciingme'vemsnfi of plunger. 8. is base: "with operating mechanism meimteei themes, a bracket having a iip lcceied unfemesth the base, a lever having short arm of U-siape extending on 0 eeite sicies of ihe bracket and. itsdonge-r a m serving as means for eperetiiig the through seiti cievieeys retsry sii'iker h the filever being" A nest, havinga peripheral groove-and opera. ings therefrom,

movement, and means fer supportwork to receive 'Q'AE'KIiQWS cieiivered upperiieg week, end a loose the sheet arm. i meant i nefiemesth the ease, jeeiieg through 'ziie base, e 2e the piunger, lever yiee'es said iemcket am; with SilOiL ing underneesn said c'oiisi', 011' 2 having s recess" and the 0 'emjeetion located therein;

theme? 10. A base with m eeted thereon, a beeches iiigg iiiici'erneeth ing it's-mugs base shaped upnee emi in the lever sees; neeiions for opersiisg; e the levee thereof. 1

11; Weri; supgiee'fiii in one enguieeiy is opei'sise we-T its iengei em i servi' emf-ion of level? 0. and ferm a stop fer A arm 0i the iever,

e 12. A pimiger arranges is s of Work, e-ceiler securmi limit its movement inbzie having 22 short arm arm, eemiec'tiens 'celiar for epem bing the pi to encounter the out-ex" end of the lever to 1" its 1A0. same direetien as that ef 13- A plunger serengeei t e of Work, a lever pi mi-eiiy moi; arm to operaee said plum -i arm (,0 act as e m iever, said lever hex in j'eceien 2mm the plungcess whereby im'ning venie fi.

M. if; meimteeiameeeen, s "em,

ieneiizig' iiziemeesii inegecting 1e s @eejeeiie 12mg. ie'ves i'm'iaiiy ms nmekee m ivith its iii-02 m unfierneazie ssi'cii eeiisr, said recess to receive ssiai pre ii iengei mi the ievei epez'atien the-reef;

to she Witnesses: W

\ H. A. R. 'W. 

